If you're not happy with the color of your teeth, you're not alone. Here's how to identify the cause and begin appropriate teeth stain removal. A home tooth-whitening kit contains carbamide peroxide, a bleach that can remove both deep and surface stains and actually changes your natural tooth color. If you have coffee-stained teeth, a tooth-bleaching kit can help. With some kits, you apply a peroxide-based gel (with a small brush) to the surface of your teeth. Learn about teeth stains and types of tooth discoloration. Find out about the causes of stains on your teeth and discover how to get rid of them at Crest.com. Tobacco stains on teeth are often difficult to remove because they have occurred over years of smoking. The stains have settled deep into the enamel and often . Is teeth stain removal on your mind? Then read on to find out how to remove teeth stains with different whitening solutions and how to prevent new stains.